Comparison

Japan vs Tip&Unit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Japan

Easily convert between Japanese and US units for length, weight, speed, volume, temperature, area, currency, and time zones. This tool is useful for travel, daily life, work, and study, offering a wide range of conversion categories.

Highlights
  • Length conversion
  • Weight conversion
  • Speed conversion
  • Volume conversion
  • Temperature conversion
  • Area conversion
  • Currency conversion
  • Timezone conversion
Features
Read full description

This is a handy tool for easy and convenient everyday unit conversions. It is equipped with features useful in various situations, from travel and daily life to work and study. With this app, you can convert units in the following categories: 1. Length (millimeters, centimeters, meters, kilometers ↔ inches, feet, yards, miles) 2. Weight (milligrams, grams, kilograms, tons ↔ ounces, pounds, stones, short tons) 3. Speed (meters/second, kilometers/hour ↔ feet/second, miles/hour) 4. Volume (cubic millimeters, cubic centimeters, cubic meters, liters ↔ cubic inches, cubic feet, fluid ounces, gallons) 5. Temperature (Celsius ↔ Fahrenheit) 6. Area (square millimeters, square centimeters, square meters, hectares ↔ square inches, square feet, acres) 7. Currency (dollars ↔ yen, using the latest exchange rate) 8. Timezone (Japan Standard Time ↔ Eastern Standard Time, Central Standard Time, Mountain Standard Time, Pacific Standard Time, Alaska Standard Time, Hawaii Standard Time) [Premium Version] - No ads within the app - Unlimited number of favorite registrations Terms of Use: https://kn-factory.hatenablog.com/entry/2023/06/25/124505 Privacy Policy: https://kn-factory.hatenablog.com/entry/2023/06/25/124429

About

Tip&Unit

Features
Read full description

チップ計算機と単位変換器を1つにしたアプリ。 チップ計算機では、金額を入力してチップの割合を選ぶと、チップ額と合計額を自動計算。便利な端数の切り捨て・切り上げボタン付き。 単位変換器では、世界で使用されている摂氏・センチ・グラムなどの単位を、アメリカで一般的に使用される華氏・インチ・オンスに変換できます。

Screenshots

Japan3 screens
Tip&Unit2 screens

Verdict

The call

The clearest difference is in-app purchases: Tip&Unit at none against Japan's 1. Tip&Unit also leads on ads (none vs shown). Japan's advantage is iOS requirement (16.2 vs 18.4). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Japan sells 1 one-off in-app purchase. Tip&Unit asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 6 level
Japan versus Tip&Unit: the parameters behind the verdict, then further details
ParameterJapanTip&Unit
PriceFreeFree
Rating4.8 (18 ratings) — better—
Number of ratings18 — better—
Update frequencyWeeklyWeekly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.2 — better18.4
Further details — not scored
Size18 MB6 MB
Age rating4+4+
DeveloperKoya NamboAKIKO ISHIKAWA

In-app purchases

1 purchases

Japan

One-time1
  • Premium$3.99
None

Tip&Unit

No in-app purchases

Questions

Is Japan free?
Japan is free to download, with in-app purchases available.
Is Tip&Unit free?
Tip&Unit is free to download, with no in-app purchases.
Do Japan or Tip&Unit have ads?
Japan shows ads; Tip&Unit does not.
Which is updated more often, Japan or Tip&Unit?
Japan ships an update weekly, and Tip&Unit weekly. Most recently, Japan was updated on September 27, 2026 and Tip&Unit on September 21, 2026.

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